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CN-224217532-U - Battery module shell and battery module

CN224217532UCN 224217532 UCN224217532 UCN 224217532UCN-224217532-U

Abstract

The utility model discloses a battery module shell and a battery module, and relates to the technical field of battery modules, comprising a shell, wherein a cavity for accommodating the battery module is arranged in the shell; the battery module comprises a cavity, a battery module, a baffle structure, a battery module, a cooling liquid conveying structure and a liquid outlet structure, wherein the cavity comprises a first side, a second side, a third side and a fourth side which are oppositely arranged, the first side and the third side are oppositely arranged, the liquid inlet and the liquid outlet are formed in the first side of the cavity, the cooling liquid conveying structure comprises a liquid inlet end communicated with the liquid inlet and a liquid outlet end used for discharging cooling liquid to the cavity, the liquid outlet end of the cooling liquid conveying structure is located on the second side so that the cooling liquid flows from the second side to the first side, the baffle structure is respectively arranged on the third side and the fourth side, and the baffle structure is used for respectively shielding gaps between the battery module and the third side and the fourth side of the cavity when the battery module is mounted to the cavity. According to the utility model, the cooling liquid can uniformly flow through the battery module to take away the heat in the battery module.

Inventors

  • HUANG CHAO

Assignees

  • 浙江云创智达科技有限公司

Dates

Publication Date
20260508
Application Date
20250416

Claims (10)

  1. 1. The battery module shell comprises a shell body, wherein a cavity (10) for accommodating a battery module is arranged in the shell body, the cavity (10) comprises a first side, a second side, a third side and a fourth side, the first side and the third side are oppositely arranged, the first side of the cavity is provided with a liquid inlet (11) and a liquid outlet (12), and the battery module shell is characterized by further comprising a cooling liquid conveying structure (20) and a baffle structure, wherein the cooling liquid conveying structure is arranged in the cavity (10); The cooling liquid conveying structure (20) is provided with a liquid inlet end communicated with the liquid inlet (11) and a liquid outlet end used for discharging cooling liquid to the cavity, wherein the liquid outlet end of the cooling liquid conveying structure (20) is positioned on the second side of the cavity (10) so that the cooling liquid in the cavity (10) flows from the second side of the cavity to the first side; The baffle structures are respectively arranged on the third side and the fourth side of the chamber (10), and are used for respectively shielding gaps between the battery module and the third side and the fourth side of the chamber (10) when the battery module is mounted to the chamber (10).
  2. 2. The battery module housing according to claim 1, wherein the cooling liquid conveying structure comprises a liquid inlet pipe (21) and a plurality of liquid outlet pipes (22), a first end of the liquid inlet pipe (21) is formed as a liquid inlet end of the cooling liquid conveying structure (20), the first end of the liquid inlet pipe (21) is communicated with a liquid inlet (11) of the chamber (10), a second end of the liquid inlet pipe (21) is respectively communicated with the liquid outlet pipes (22), the liquid outlet pipes (22) are distributed at intervals along the height direction of the chamber (10), and a plurality of liquid outlet holes (221) distributed at intervals along the length direction of the liquid outlet pipes (22) are formed as liquid outlet ends of the cooling liquid conveying structure (20).
  3. 3. The battery module housing according to claim 2, wherein the liquid inlet pipe (21) comprises a first pipe wall (211) arranged on the inner wall of the first side of the chamber (10) and a second pipe wall (212) arranged on the inner wall of the fourth side of the chamber (10), the first pipe wall (211) extending from the liquid inlet (11) to the fourth side of the chamber (10), the second pipe wall (212) extending from the first side of the chamber (10) to the second side, wherein a liquid inlet channel is formed between the first pipe wall (211) and the second pipe wall (212) and the inner wall of the chamber (10), and the liquid inlet channel is communicated with the liquid inlet (11); The liquid outlet pipe (22) comprises a third pipe wall connected with the inner wall of the second side of the chamber (10), the third pipe wall extends from the fourth side of the chamber to the third side, a liquid outlet flow passage is formed between the third pipe wall and the inner wall of the chamber, the liquid outlet flow passage is communicated with the liquid inlet flow passage, and the liquid outlet hole (221) is respectively communicated with the liquid outlet flow passage and the chamber (10).
  4. 4. A battery module housing according to claim 3, wherein the baffle structure includes a first baffle (31) provided on a third side inner wall of the chamber (10) and two second baffles (32) provided on a fourth side inner wall of the chamber (10), the two second baffles (32) are provided on both sides of the second tube wall (212) in a height direction of the chamber (10), respectively, and the second baffles (32) extend in a length direction of the second tube wall (212).
  5. 5. The battery module case according to claim 4, wherein the first baffle (31) and the second baffle (32) each include a protrusion (312) protruding in a direction away from an inner wall of the chamber (10) and connection portions (311) provided at both sides of the protrusion (312), the connection portions are attached to the inner wall of the chamber, the protrusion (312) is provided with a plurality of hollowed-out holes, and the hollowed-out holes (3121) are used for balancing pressures at both sides of the protrusion (312).
  6. 6. The battery module housing according to claim 1, further comprising a fastening structure provided at a bottom of the chamber for detachably mounting the battery module in the chamber (10).
  7. 7. The battery module case according to claim 6, wherein the fastening structure includes a plurality of nut mounting posts (41), a plurality of fastening screws (43), and a plurality of cushion pads (42), the nut mounting posts (41) are provided at the bottom of the chamber (10), screw holes are provided on the nut mounting posts (41), the cushion pads (42) are provided on the nut mounting posts (41) and the cushion pads (42) are provided with through holes corresponding to the screw holes, and each of the fastening screws (43) is adapted to pass through the through holes on the cushion pads (42) one by one and be screw-coupled with the screw holes of the nut mounting posts (41) one by one, when the battery module is mounted to the chamber (10).
  8. 8. The battery module housing according to any one of claims 1 to 7, wherein the case includes a lower case (13) and a cover plate (14), and the cover plate (14) is hermetically connected to the lower case (13) and encloses the chamber (10) together.
  9. 9. The battery module housing according to claim 8, wherein the cover plate (14) is of a flat plate-like structure, the lower case (13) includes a bottom plate and four side walls disposed around the bottom plate, the four side walls and the cover plate collectively enclose the chamber (10), the four side walls include first and second side walls disposed opposite to each other in a longitudinal direction of the bottom plate, and third and fourth side walls disposed opposite to each other in a width direction of the bottom plate, the liquid inlet (11) and the liquid outlet (12) are both disposed outside the first side wall, the liquid outlet end of the cooling liquid conveying structure (20) is disposed inside the second side wall, and the baffle structure is disposed inside the third and fourth side walls.
  10. 10. A battery module comprising the battery module case according to any one of claims 1 to 9 and a battery module (50) accommodated inside the battery module case.

Description

Battery module shell and battery module Technical Field The utility model relates to the technical field of liquid-cooled batteries, in particular to a battery module shell and a battery module. Background Most of the liquid cooling power supply modules utilize the sandwich plate to dissipate heat, and cooling pipelines are arranged in the sandwich plate, so that the temperature of the sandwich plate is reduced. Meanwhile, the position of the sandwich plate is arranged on one side of the main board, and the temperature of the main board is reduced by using the low temperature of the sandwich plate. The problem that the temperature of the side of the main board, which is close to the sandwich board, of the battery module is reduced faster, and the temperature of the side of the main board, which is far away from the sandwich board, is reduced slower, so that the heat dissipation of the main board is uneven. Disclosure of utility model The present utility model aims to solve one of the technical problems in the related art to a certain extent. Therefore, the utility model provides a battery module shell and a battery module. In order to achieve the aim, the battery module shell comprises a shell, wherein a cavity for accommodating a battery module is arranged in the shell, the cavity comprises a first side, a second side, a third side and a fourth side, wherein the first side and the second side are oppositely arranged, the third side and the fourth side are oppositely arranged, the first side of the cavity is provided with a liquid inlet and a liquid outlet, and the battery module shell further comprises a cooling liquid conveying structure and a baffle structure, wherein the cooling liquid conveying structure and the baffle structure are arranged in the cavity; The liquid outlet end of the cooling liquid conveying structure is positioned at the second side of the cavity, so that the cooling liquid in the cavity flows from the second side of the cavity to the first side; The baffle structures are respectively arranged on the third side and the fourth side of the cavity, and the baffle structures are used for respectively shielding gaps between the battery module and the third side and the fourth side of the cavity. The battery module cooling device has the advantages that the cooling liquid conveying structure is arranged, the liquid outlet end of the cooling liquid conveying structure and the liquid outlet of the cavity are respectively located on the second side and the first side of the cavity, so that cooling liquid flows out of the cavity after passing through the main board of the battery module from the second side of the cavity to the first side of the cavity, and meanwhile, the baffle mechanism is arranged to respectively shield gaps between the battery module and the third side and the fourth side of the cavity, so that cooling liquid flows through the battery module to the greatest extent, heat of the battery module is taken away, and the heat dissipation effect is improved. Optionally, the cooling liquid conveying structure comprises a liquid inlet pipe and a plurality of liquid outlet pipes, wherein the first end of the liquid inlet pipe is formed into a liquid inlet end of the cooling liquid conveying structure, the first end of the liquid inlet pipe is communicated with a liquid inlet of the cavity, the second end of the liquid inlet pipe is respectively communicated with a plurality of liquid outlet pipes, the liquid outlet pipes are distributed at intervals along the height direction of the cavity, and each liquid outlet pipe is provided with a plurality of liquid outlet holes distributed at intervals along the length direction of the liquid outlet pipe, and the liquid outlet holes are formed into a liquid outlet end of the cooling liquid conveying structure. Optionally, the liquid inlet pipe comprises a first pipe wall arranged on the inner wall of the first side of the chamber and a second pipe wall arranged on the inner wall of the fourth side of the chamber, wherein the first pipe wall extends from the liquid inlet to the fourth side of the chamber, and the second pipe wall extends from the first side of the chamber to the second side; the liquid outlet pipe comprises a third pipe wall connected with the inner wall of the second side of the cavity, the third pipe wall extends from the fourth side of the cavity to the third side, a liquid outlet flow passage is formed between the third pipe wall and the inner wall of the cavity, the liquid outlet flow passage is communicated with the liquid inlet flow passage, and the liquid outlet hole is respectively communicated with the liquid outlet flow passage and the cavity. Optionally, the baffle structure includes setting up the first baffle of cavity third side inner wall and setting up two second baffles of cavity fourth side inner wall, two the second baffle sets up respectively the second pipe wall is followed the both sides of cavity direct